Type-writing machine.



A. S'. DENNIS TYPE WRITING MACHINE. APPLICATION FILED Nov.22. 191s.

Patented Apr. 4, 1916'.

INVENTOR BY 6 ATTORNzY UNITED STATES PATENT oFF oE.

ApoLrHUs s. DENNIS, 'or mxnwoonyonio, ASSIGNOR 'ronnnnnwoon TYrEwRITER CGMPANY, or new YORK, N. a CORPORATION or DELAWARE.

TYPE-'WRITING MACI-IIfiE:

Specification of Letters Patent.

Patented A 4., 1916.

Application filed November as. 1911. Serial No. 661,661.

To all whom it may concern Be it known that I, ADoLPHUs S. DENNIS, a citizen of the United State s,residi'ngin Lakewood, in the county of Cuyahoga and State of Ohio, have invented certain new anduseful Improvements in TypefiVriting' Machines, of which the following is a specidesigned to separate sheet or fication.

This invention relates to the special paper feeding devices of typ'ewriting machines,

facilitatethe writing of bills and simultaneously recording them on a ledger leaf.

In billing machines the bill to be sent out is inserted on the platen together with the I tally or record sheet from the loose leaf ledger with a carbon sheet in between. It is desirable tohave the items of the separate bills written closely together on. the ledger sheet so as to waste no space thereon. To platen is rotated backwardly a predetermined distance after each bill is "written, to a position permitting the completed bill to be removed and a new bill placed on the machine, the platen being then rotated forwardly to carrythe new bill with the same ledger sheet up to the proper printing point. In this. operation the platen is rotated forwardly a distance determined by the depth of the bill head, or the distance of the first typewritten line from the upper edge of the bill, and is rotated backwardly a less distance, the greater forward rotations providing for spacing on the ledger sheet, the entries of succeeding bills.

An object therefore of my invention. is'to improve and simplify the means for rotating the platen so as to feed the paper, 'and'cause the proper spacing of the tally sheet or ledger leaf, and so that it may also} be used to feed envelope. 1,"

In the preferred form of the invention, the crank is mounted on a sleeve pro ecting through the casing, the sleeve carrying a detent which floats idly o ter a (toothed) crown gear; By adjusting a cam formed on the retaining wall or casing, the detent may be locked to the crown gear, so that the gear may travel over a predetermined distance with the crank. It will be seen that th s forms a clutch for connectingtlie ci'ankwitli the body portion of the crown gear, which is effective fora portion of the revolution of the crank. The extent ofthe effective con-.- nection can be adjusted, to correspond to the .ted, showing the relative tation of the platen thereby, .in their proper relative positions. Fig. 9 is 105 number of lines.

, extent of movement of the platen desired, by

changing the position of theadjustable cam. The crown gear in turn is connected to the platen axle by an adjustable means, so 'as to rotate the platen a variable amount. on the return movement of the crank, so that a'certain amount of space may be lost, so 'as to uncover the last line of writing on the ledger lowing bill or item'sheet. 'The invention may also be used for feeding envelops 'seriatim over the platen, or for other work rjustable cam. I-spring detent yieldingly holds the crank in its. normal position of .rest, but permits it to be moved beyond said position in either direction. N Other features and advantages will hereinafter appear.

In the accompanying drawings, Figurel sheet on the subsequent'feeding of the fol- I isa fragmentary view showing the device attached to a carriage of a typewriter. Fig. 2 is a vertical sectio Fig. 3 is a vertical section on line 33 0 Fig. 2, partly broken away to disclose the underlying structure and showing the crank starting on its movement in a direction to rotate the platen-backwardly. Fig. 4: is a vertical section oii lline 1% of Fig. 2, showing the detent and cams in their normal position. Fig. 5 is 'a vertical section on the line 5-5 of Fig.'l2,iand shows the means for determining the distance to be lost in the movement of the crank in a direction to rotate the platen backwardly. Fig. 6 is a detail )erspective view of the cams. Fig. 7 is a front view of the device with parts in cross section and parts omitposition of the detent to the crown gear when not in clutch ing engagement therewith. Fig. 8 is a View similar to Fig. 3, showing the crank at an indu'ring the backward rotermediate position with ,all parts;

a right endview, showing the pin and scale for setting the feeding device for a certain the crown gear. g 1

The usual platen 1 of the Underwood typewriter is mounted on an axle 2- our- Fig. 10 is'a detail view of naled in the bushings 4, of the inside carriage 5 held to the main carriage, which is not shown, by the lift hooks 6. Fastened at one end of the axle 2 is a finger knob 7, by means of which the platen may be moved in either direction an unlimited extent. At the left end, between the bushing l and the finger knob 7, the regular paper line-spacing mechanism is found, consisting of a ratchet 8 fast on the axle 2, moved intermittently by apawl 9 and heldin position by a detent 10. At the opposite end of the axle 2 projecting beyond the carriage 5, a on 11 is held by a pin 12 extending through lts hub 18 and the axle 2. Mounted loosely on the hub 13 for adjustment around the hub is a disk ll having an arm 15 carrying a cup 16. Projecting through this cup 16 is a. pin 17 adapted to be projected through any one of a series of holes 22 in the cup 11.. The pin 17 has a cap 18 by which it may be grasped, so as to be drawn against the action of a coil compression spring 19 anchored against the wall 20 of the cup i6 and a shoulder 21 on the pin 17. lVhen this pin is withdrawn from a hole 22 in the cup 11, Fig. 5, it may be reset in one of the other holes enlarging or decreasing the distance between the movable pin 17 and a pin 23 fixed to the cup 11.

Operating between the pins 17 and 23 carried by the cup 11, is another pin 2i fixed in the body of a crown gear 25. This crown gear 25 is mounted loosely on the axle 2 and floats between the limitations of the pins 17 and 23, but is normally held with the pin 24: against the pin by the tension of a coil. spring :26 anchored at its ends in a slot- 27 in the crown gear 25 and to a pin or stud 28 on the axle Across the face of the teeth 29 of the crown gear 25 rides a detent 30. This detent 30 (Fig. l) is pivoted by pins 31, to the hub This hub 33 revolves loosely on the axle 2, and protrudes through a casing or cam disk 31, so that an actuator in the form of a crank may be fastened to the hub. It will now be seen that by rotating the crank 35, the detent 30 will be forced out by the cam surfaces of the teeth a9 which are pointed. Therefore, to connect the driving power of the crank 35, the detent 30 is jammed between two teeth by a means which will now be described. A sec ond cam disk 36, loosely mounted on the hub 33, is held against turning, by a pin- 38, fixed on a stationary casing 39, and resting in a slot $0 in the disk 36. To connect the cam disk 3st to the cam disk 36, and thus hold the disk 34 stationary, the latter is pro vided with a movably mounted springpressed pin l2, which'is similar in construction to the pin 17, and is adapted to engage in any one of a plurality of holes 41 in the disk so that the relative positions of the cam disks may be varied. The cam disks 34 and 36 have respectively cams l3 and 37, which are concentrically arranged with respect to each other and in 'close juxtaposition, so that the extent to which they overlap can be varied by a relative movement of the disks 3% and 36, and thus the combined effective extent of camming surface can be varied. In other words, the cam portion -13 of the disk 3% is constructed on the edge of the said disk, while'the cam portion 37 of the disk 36 is slightly away from the edge, so as to allow the camming surface 43 to slide by, in order to telescope the two camming surfaces and reduce their length of action upon the detent 30. A slot ll in the disk 31 is for assembling purposes only, to admit the disk being placed below the pin 38.

To provide a definite starting and stopping point for the movement of the crank, and to insure uniformity of operation, a hollow 45 is made in the casing 39 fast to the disk 46, held against rotating by the screw l7 in the stud 48 on the inside carriage Into this hollow 15 a detent roll d9 on a plate 50 is forced by a spring 51. anchored to a pin 52 in the crank 35 and a stud on the plate 50. The plate 50 has two slots 51, through which studs 56 and 57 pass, allowing a sliding movement of the plate 50. As the detent roll i is held with a yielding pressure in the hollow 15. the crank may, if desired. be carried beyond the stopping point and the platen thus rotated indefinitely in either direction.

For the purpose of indicating the relative positions of the cams l3 and37, the disk 3i is provided with a series of graduations. indicated at 60, which form a scale located in juxtaposition to the overlapping margin of the casing 39, which is provided with a let erence mark 61 showing the relative adjustment of the cam disk 3% to the casing 39, and thus indicating the extent of overlapping of the cams l3 and 37. Means is also provided to indicate the number of lines which the mechanism will space at each actuation thereof, which consists in a graduated scale 62 provided on the periphery of the cup 11, which has located in juxtaposition thereto a reference mark 63 on the adjustable pin 17. This shows the amount which the pin 2i will move idly before coming in contact with the pin 17, and thus the amount or number of lines which the ledger will be spaced between the writing of two successive bills;

In the operation we will assume that it is desired to start a fresh ledger sheet with the first bill. The ledger sheet and the'bill are placed together with a carbon sheet in between so that they enter at the bight of the platen. The crank 35 is moved to the right (looking at Fig. 5) one complete revolution. and the detent 30 which is permanently conmated to travel with the crank, at first rides on r the teeth 29 of the crown gear 25, until iii-reaches the cam portion .43 of the disk .34. ,The detent-will. now; be forced into thecav ity between two teeth ,on-. further travel it willdrive or crown gear 25 with; it.

I tinned rotation-ofthe crank and therebycause the platen to rotate.

and held there, sothat carry the 10 to lock the platen inposition; the crank the socket 45 operation, the platen may rotation of the crank or actuator 35 in the opposite direction ,The crank 35, on

by the arrow shown the crown gear 2 5,

.. to the platen 35 continuingvuntil.ithas completed its revolution when the roller 49 comes to rest in The crown gear has its teeth arranged in accord with those of the ratchet 8. of the {regular line space mecha-' nism, so as .to coincide with the resting positions of the detent 10. The bill and ledger sheet have now-been advanced to a position. where they can be written on,

be rotated backwardly to a position such that the bill can be removed from the platen, leaving the ledger sheet still on the platen. This backward rotation of the platen is eifected by a from that just described. being rotated as indicated in Fig. 3, willfcarry the idly over the teeth 29 of until again 'cammed in, the cam- 37 on the diskBG. The 25 will then be carried along detent as before,

this time by crown gear with the crank, first winding up on the spring 26, until the pin 24 comes into engagement with the pin 17, when a positive connection will be made through the cup 11 axle 2, so that the platen can be rotated backward to enable the bill sheet to be slipped fromtheplaten. The extent ofthisrota-tion will thenbe determined by the cam 43 and the teeth the point where the detent 30 slips-o'itthe free end ofithe cam 43g the crank 35 continuing its movement beyond this point until it has madea complete reverse .revolution with the roller 49 once more entering the socket4'5fl V y With the freein' of the detent 30 from 29. not only will the platen 1 stop itsmovement butthe spring 26 will be free to act so as gear 25' and bring thepin 24 once more into engagement with the pi-n23', in order to en able the platen onjja' subseouentrotation'of the crank 35, to androtated in a 'line-feeding direction just It will be noted that the extent which the ledger sheet and the bill sheet are fed onto The.- crown gear .251

and after this to carry the crownbe "immediately picked up will be determined the period detent ,is locked between the teeth 25, and that this in turn the platen, I which the 229 of the crowngear depends uponthe' combined.- eflfe'ctive cam- ,ming length of .the cams 37 and 43.- Hence,--'

, it will be evidentthat the extent which the bill sheet is'fed to avoid the bill-head, so

to bring a clear space thereon opposite printing pointof the typewriter, may be regulated by regulating the combined ate reversed to remove thebill sheet from the platen, a lost motion takes place beforet'ho spring 26 is wound up sufiiciently to bring the pin 24 into engagement with the pin 17 During this time, the platen 1, of course, is stationary, so that it has not ha as much counterrotation for a single revolution of the crank 35, as it had. in placing the bill sheet on theplaten. It is therefore apparent that the ledger sheet instead of being returned its full distance which it was advancedby the initial rotation of the crank 35 will be only returned a traction of this distance, so that when it is subsequently refed with a fresh bill sheet, instead of the last typewritten line which was at the printing point coming once "more to the printing point, afresh line of the ledger sheet will be advanced to the printing point. The extent of this feed betwimn-two successive bill sheets, that is to say, the distance between the last printing line and the new printing line on the ledger-sheet, will be determined by the extent of play,

the distance between the pins 23 and 17. It will-thus be see that by varyingthe position of the pin 17, the extent which the ledger sheet will be. fed upbetween the writing of two bills, will depend on the position of the pin 17,- which can be adj ustedby placing it in any-one ofthe holes 22, to vary the space between the written items of two separate bills as inscribed on the ledger sheet.

or, in other words, by

" Variationsm'ay be resorted to within the and portions of the improvements maybe used V Having thus described my invention, I

claim: I p

Y 1. The combination with a platen, of an actuator rotatable about the platen axis for rotating said platen, means. forconnecting said actuator to said platentotrotate said platen afcertain extent in one direction and a different extent in theopposite direction, and adjustable means-for varving the difference in the extent of rotation in one direc-,

'tion from the other direction.- f 2. The combination w th a platen, of a coaxial actuator. for rotating platen.

means for connecting said actuatorto' said platen to rotate said platen a certain extent in one direction and a diiierent extent in the opposite direction, adjustable means for varying the difference in the extent of rotation in one direction from the other direction, and means for indicating the difference in extent of rotation.

3. The combination with a platen,vof an actuator for rotating said platen, means for connecting the actuator to said platen to rotate said platen a certain extent in one direction and a different extent in the opposite direct'on, a permanently fixed member, and a spr i -pressed detent on said actuator for engaging said fixed member acting solely to determine the starting and finishing point of said actuator,

LThe combination with a platen, of an I actuator for rotating said platen, means for connecting said actuator to said platen, including a clutch, and overlapping cams for automatically forcing the parts of said clutch into engagement for a predetermined movement of said actuator.

5. The combination with a platen, of an actuator for rotating said platen, means for connecting said actuator to said platen, including a clutch, juxtaposed cams for automatically connectingthe parts of'said clutch for a predetermined movement of said actuator, and means for varying the eflective extent of said cams.

6, The combination with a platen, of an actuator for rotating said platen, means for connecting said actuator to said platen, including a clutch, and juxtaposed cams for automatically connecting the parts of said clutch for a predetermined movement of said actuator; said cams being adjustable to overlap each other varying amounts to vary their combined effective magnitude.

7. The combination with a platen, of an actuator forrotating said platen, means for connecting said actuator to said platen, including a clutch, juxtaposed cams for automatically connecting the parts of said clutch for a predetermined movement of said actuator; said cams being adjustable to" their combined effective magnitude, and

means for locking said cams in any relative adjusted positions. I

9. The combination with a platen, of an actuator for rotating said platen, means for r connecting said actuator to said platen, including a clutch, cam disks having juxtaposed cams thereon for automatically connecting the parts of said clutch for a predetermined portion of the movement of said actuator, said cam disks being adjustable to vary the combined eifective magnitude of said cams and thus the period of connection of the parts of said clutch, one of said cam disks having a series of openings thereon,

and a pin movably mounted in the other of said disks and adapted to engage in one of said openings to determine the relative positions of said cams.

10. The combination with a platen, of an actuator for rotating said platen, means for connecting said actuator to said platen, including a clutch, cam disks having juxtaposed cams thereon for automatically connecting the parts of said clutch for a predetermined portion ofthe movement of said actuator, said cam disks being adjustable to vary the combinedvefi'ec ive magnitude of said cams and thus the period of connection of said clutchpart-s, one of said cam disks having a series of openings therein, and a spring-pressed pin mounted in. the other of said disks and adapted to engage in one of said openings to lock said disks together.

11. The combination with a platen, of an actuator for rotating said platen, means for connecting said actuator to said platen, including-a clutch, cam disks having juxtaposed cams-thereon for automatically connecting the parts of said'clutch for a predetermined portion of the movement of said actuator, said cam disks being adjustable to vary the combined effective magnitude of said cams and thus the period of connection of said clutch parts, and means for holding one of said cam disks fixed.

12. The combination with a platen, of an actuator for rotating said platen, means for connecting said actuator to said platen, including a clutch, cam disks having juxtaposed cams thereon for automatically connecting-the parts of said clutch for a pr determined portion of the movement of said actuator, said cam disks being adjustable to vary 'the combined effective magnitude of said cams and thus the period of connection of said clutch parts, means for holding one of said cam disks fixed, and means for looking the other of said cam disks to said fixed cam disk.

13. The combination with a platen, of an actuator for rotating said platen, means for connecting said actuator to said platen, including a clutch, and a plurality of concentric cams for automatically connecting a the parts of said clutch for a predetermined portion of the movement of said actuator, said cams overlapping each other and being rotatable relative to each other to vary their combined effectivemagnitude, and thus the nect said detent therefrom,

cams for forclng said 'detent into engage-.

period of connection of the parts of said "clutch.

l-l. The combination with a platen. of an actuator for rotating said platen, a toothed gear having a limited rotation relative to the platen, means for connecting said gear to said platen, a detent movably connected to said actuator, the teeth of said gear being formed to automatically disconnect said detent therefrom, and a cam for forcing said detent into engagement with said teeth durmg a certa nportion of the revolution of said detent with said actuator.

15. The combination with a platen, of an actuator for rotating said platen, a crown gear, means for connecting said crown gear to said platen, a detent movably connected to said actuator, the teeth of said crown gear being formed to automatically disconnect saiddetent therefrom, and a plurality of. cams for forcing said detent into engage ment with said crown gear for a certain portion of the revolution of said actuator, said cams being adjustable relative to each other .to vary their combined effective magnitude, and thus vary the period of connection of said detent with said crown gear.

16. The combination with a platen, of an actuator for rotating said platen, a crown gear, means for connectlng said crown gear '-to said platen,

a detent movably connected to said actuator, ,the teeth of said crown gear being formed to automatically discona plurality of ment w: i-th sai crown gear for a certain portion of the revolution of said actuator, said cams being adjustable relative to each otherto vary their combined effective magnitude, and thus vary the period of connec- 'tion of said detent with said crown gear,

and means for indicating the relative adjustment of said cams. I p

17. The combination with a platen, of an actuator for rotating said platen, a crown gear, means for connecting said crown gear to said platen, a cletent movablyconnected to said actuator, the teeth of said crown gear being formed to automatically disconnect said detent therefrom, a plurality of cams for forcing said detent' into engagement with said crown gear for a certain por- 6 i'ng-said platen, amelnber connected to said actuator, a spring connecting. saidmember. tosaid axle permitting a relative yieldmgmotion between said member and said axle,

axle in a yielding manner,

their relative adand means for positively connecting said member to said axle. I 19. The combination with'a pl'a'ten," of an axle for said platen, an actuator 'forrotating said platen, a member loosely 'mouiitedon said axle and. conne'ct'ed'to'said'actuator,"

a spring for connecting said'm'ember to said axle in a yielding manner,"*an'dmeans for positivelyconnecting said member to said axle having a certain amount of 'playor; lost motion.-

20. The combination witha platen,of'an axle for saidplaten, an actuator for rotating said platen, a member loosely mdun ea on said axle, means to connectsaid actuator to said member, a spring for connecting said member to said a-xle in a yielding manner, means for positively connecting sa d mem-- her to said axlehav-ingh'ja certainiamount of play or lost motion, and nea'ns for varying the extent of said player lost motion.

21. axle for said platen, an actuator for rotating said platen, a member loosely mounted'on said axle and connectible to said actuator,

The combination with a" platen, of an a spring-for connecting said member to said' means for positively connecting said" member to said axle having a certain amountof'play orlost motion, and means for varying and indicating,

the extent of saidplayfor lost motion};

22. The combination with a platen, ofan axle for said platen, a pinoonne'cted to said axle, anactuator for said platen looselyv axle, a pin connectible' 'to mounted on said said actuator, and a pin adjustably connected to said axle. so as to vary its relative position to said first-mentioned pin, said second-mentioned pin being adapted to swing between said first-n"1entioned pin-and to allow a variable amount of play between said. actuator and,

said third-mentioned pin,

said platen. y I

23. The combination witha platen, of an axle for said platen, a pinconnected to 'said axle, an actuator for .said platen loosely mounted on said axle, a pinconnectible to said actuator, a pin adjustablyconnected to' saidaxle, so as to vary its relativepositi'on to said first-mentionedpin,- said second-I mentioned pin being adapted to. swing between said first me'ntioned' pin and said third-mentioned to allow a variable amount of play between s'aidlactuator and said platen, to keep said. second-mentioned pin. in. contact'with one of the others of saidfpins.

24. The combination with a ,pna tmn aXle for said platen, a pin connected to said axle, an actuator for said platen loosely, mounted on said axle, said actuator,

to said axle. so as to vary its relative position to said first-mentioned pin,. said secondmentioned-pin-being adapted ,to;sw1ng be 130 and a. spring normally tending 1 a pin .fconn'ectible' to and a pin adjustably connected said actuator,

tween said first-mentioned pin and said third-mentioned pin, to allow a variable amount of play between said actuator and said platen, and a spring connected to said axle adapted to tend to keep said secondmentioned pinin contact with said firstmentioned pin.

25. The combination with a platen, of an axle for said platen, a pin connected-to said axle, an actuator for said platen loosely mounted on said axle, a pin connectible to a third pin connected to said axle and located in spaced relation from said first pin, permitting a limited movement of said second pin between said first and third pins, andmeans for connecting said second pin with said actuator during a certain portion of the movement of said actuator.

26. The combination with a platen, of an axle for said platen, a pin connected to said axle, an actuator for said platen loosely mounted on said axle, a pin connectible to said actuator, a third pin connected to said axle and located in spaced relation from said first pin, permitting a limited movement of said second pin between said first and third pins, means for connecting said second pin with said actuator during a certain portion of themovement of said actuator, and a spring connected to said axle and to said second-mentioned pin so as to yieldingly permit the movement of said second-men tioned pin out of contact with said firstmentioned pin and so as to return said second-mentioned pin into contact with said first-mentioned pin at the disconnection of said second-mentioned pin from said actuator.

27. The combination with a platen, of an actuator for said platen. a locselv mounted member. means for intermittently connecting said member to said actuator. means for connecting said member to said platen permitting a certain amount of play between said member and said platen. for taking up said plav during the period of disconnection of said member from said actuator.

, 28. The combination with a platen, of an axle for said platen, a cup secured to said axle. a pin mounted in said cup, a crown gear looselv mounted on said axle, a pin mounted on said crown gear, and engaging with said first-mentioned pin. a detent, an actuator connected to said detent, said crown gear having teeth adapted to engage said detent to lock said crown gear in driving .relai' in with said actuator, and means for forcing said detent in clutching relation with said crown gear.

29. The combination with a platen. of an axle for said platen. a cup secured to said axle. a pin mounted in said cup. a crown gear'loosely mounted on said axle, a pin mounted on sail crown gear and engaging 'axle for said on said crown with-said first pin,

and a spring with" s at dfirstmentioned actuator connected to said detent, said crown gear having teeth adapted to engage said detent tolock said crown gear in driving relation with said actuator, and a cam-for forcing said detent in clutching relation with said crown gear.

30. The combination with aplaten, of an platen, a cup secured to said axle, a pin mounted in said cup, a crown gear loosely mounted on said axle, a pin mounted gear and engaging with saiil first-mentioned pin. a detent, an actuator connected to said detent, said crown gear having teeth adapted to engage said detent to lock said crown gear in driving relation with said actuator, a cam for forcing said detent in clutching relation with said crown gear, a spring for normally holding sai second pin in contact with said first pin, and a third pin located in spaced relation from said first pin on the opposite side of said second pin. 4

31. The combination with a platen, of an axle for said platen. a cup secured to said axle, a pin mounted in said cup. a crown gear loosely mounted on said axle, a pm mounted on said crown gear and engaging with said first-mentioned pin, a detent, an actuator connected to said detent, said crown gear having teeth adapted to enpin, a detent, an

gage said detent to lock said crown gear 1n driving relation with said actuator, a cam for forcing sald detent 1n clutching relation with said crown gear, a spring for normally holding said second pin in contact and a third pin located in spaced relation from said first pin on the opposite side of said second pin; said third mentioned pin being adjustably secured to said cup so as to vary the amount of play be tween said cup and said crown gear.

32. The combination with a platen. of an, axle for said platen, a cup secured to said axle, a crown gear mounted on said axle, a pin secured to said cup, a pin secured tosaid crown gear, a spring normally forcing said second-mentioned pin in contact with s.id first mentioned pin. a third pin connected to said cup in spaced relation from said firstmentioned pin and on the opposite side of said second-mentioned pin. so as to permit a limited play between said cup and said crown gear, a crank. a hub connected to said crank, a detent pivotall mounted on said hub and engaging with said crown gear, a plurality of relatively adjustable cams for forcing said detent into engagement with said crown gear during a portion of the movement of said crank. and means for ad justing said cams relative to each other to vary the period of connection of said detent with said crown gear.

33. The combination] with a platen, of a pair of stops located in spaced relation and so as to force said detent into engagement with during a portion of the' a predetermined portion of the" movement 0 said actuator, and detaining means for resaid crown gear parts connected fixedly to said platen, an actuator for rotating said platen, a clutch enabling the. connection. of said actuator with said platen, and a pin'connected to one of the elements of saidclutch and adapted to oscillate between said stops so as to provide a limited amount of relative movement between said actuator and said, platen. a 34. The combination with a platen,'of an axle for said platen, a cup secured to said axle, a pin secured to said cup. a crown gear mounted 01-. said axle, a pin secured to said crcwn gear, a spring connected to said axle and said crown gear tending normally to force said second-mentioned pin in-contact with said first-mentioned pin, said cup having a series of openings therein, a pin mov- .able into any one of said openings andpositionable at variable distances on the opposite side of said second-mentioned pinto said first-mentioned pin, so as topermit a limited movement of said second-mentionedpin be: tween said first and third-mentioned pins, a hub loosely mounted on said axle, a crank secured to said hub, a detent pivotally mountedon said hub and engageable with said crown gear, a cannineans for fixedly securingsaid cam,

a secondcam arranged concentrically with sald first cam and overlapping the same, said cams bemg located so movement of said detent with said crank, means for adjusting the relative position of said cams, so as to vary their combined effective magnitude, and means for determining the initial position of said crank.

35. The combination'with a platen, of an actuator having a definite movement of fixed extent for rotating said platen, means for connecting said actuator to said platen so that the fixed rotation thereof will rotate' said platen a certain extent in one direction and a difi'erentextent in the opposite direcference without varying tion, adjusting mechanism'to vary said d1fthe extent of movement'ot the actuator and detaining means for determining the starting and finishing point of said actuator;

. 36. The combination with a platen, of an actuator for rotating said platen. means for connecting and disconnecting said actuator to and from said platen lncluding' a clutch having parts connectible to determine the movement of said platen with said actuator,

means for automatically connecting the of said clutch for a portion of the movement of said actuator, and means for varying the geriod ofdisconnection of-said clutch by said first-nientionedmeansu 37, The combination With-a platen, of an actuator for rotating said platen, means connecting said platen to said actuator for int-o locked. engagement for a predetermined portion.

- parts.

f range of movement in matic means for maintaining said platen leasably confining both the starting and finishing points of the movement of actuator for each stroke to a certain point and permitting the'actuator to be carried beyond said certain point.

88. The combination with a platen, of an actuator for rotating said platen, means connecting said platen to said actuator for -a' predetermined portion of the movement of said actuator, and locking means for coincidingthe starting and finishing points of the movement of said actuator to a singlepoint for a continuous action thereof.

39. The combination with a platen, of an actuator coaxial with "the-platen for rotating said platen, means for connecting said actuator to said platen, means for automatically connecting, the

parts of said clutch for a predetermined the movement of said actuator" portion of and disconnecting the clutch parts for another portion of said movement, adjusting means'tor varying'the period of disconnection of said clutch by said first-mentioned means,-and means for indicating the adjustment of, said second-mentioned means and thus the period of connection of said clutch.

40. The combination with a platen, of an actuator rotatable about the platen axis for rotating saidplaten', means for connecting said actuator to said platen, including a said including a clutch,

clutch, having normally. disengaged parts I 4:1. The combination with a rotatable platen, of an. actuatorrotatable aboutthe platen axis, a yie ding stop for the actuator for determining the normal limits of [rotation of the actuator, and driving mechanism between the actuator and platen to efiect a predetermined rotation of the platen, said actuator being rotatable in either direction beyond its normal limits determined by said stop to effect Pl a 42. The combination with a rotary plat-en,

a greater rotation oi. the

of'an actuat'orfrotatable about the platen' axis, and a spring detent to vieldinglv hold the actuatonatiamormal limit of movement but permitting the actuator to'be carried beyond saidnormalhnnt in either direction.

' 43. The Olnllll'LZlililjlffli'jllll a platen. of an:

actuator'tt rotate the platen in both directions, said ctua'torhavinga definite normal both directions, auto free from said actuator at both the beginning and end of said movement of the actuator and for connecting said platen to move with said actuator a predetermined distance in one direction intermediate the beginning and end of said movement of the actuator in one direction. and a different distance in the opposite direction during the reverse movement of the actuator. means to vary said distances of rotation of the platen without varying the said range of movement of the actuator. and means to stop and hold the actuator at the limits of its movement.

ll. The combination with a platen. of an actuator having a limited normal movement. detaining means to delta-mine the limits of said movement. automatic means for maintaining said platen tree from said actuator at both the beginning and end of said movement of said actuator and coir necting said platen to move with said actu to a predetermined period intermediate the beginning and end of said movement. and adjusting means for varying the extent of said periodott' action without varying said limits of movement of the actuator: said actuator being movable in either direction beyond the limits determined by said detaining means and thereby operable to effect a further rotation of the platen.

+5. The combination with a platen. of an actuator rotatable about the platen axis and having a definite normal range of moven'ient for rotating said platen. means f r connecting said actuator to said platen to rotate as a unit therewith. said means including a latch. means for automatically connecting the parts of said clutch so that the actuator has a fixed relation to the platen during a predetermined portion of the movement of said actuator and for disconnecting the clutch parts when the actuator is at an intermediate point during said movement so that the actuator can rotate free of the platen during the final portion of said movement. and adjusting means for varying the point of disconnection of said clutch.

-16. The combination with a rotatable platen. of an actuator rotatable about the platen axis for rotating the platen, a clutch to connect the actuator to the platen. and a spring detent for vieldingly holding the actuator to normally limit the movement of ti -r actuator and thereby determine the extent of rotation of the platen; said actuator being movable in. either direction from the position in which it is held by said detent. to eli'ect a greater rotation of the platen than that determined by said detent.

47. The combination with a rotary platen, of an actuator rotatable about the platen axis, a clu'ci to effect a fixed connection between the platen and actuator to rotate the platen. retarding means for the actuator for normally limiting the movement of the actuator in opposite'jdirections; and mechanism between thefac'tuator and platen for effecting a greater rotation of the platen in one direction than the other when the actuator is reciprocated between said normal limits; said retarding means being yieldable to permit the actuator to be moved in either direction bevond said limits and thereby permit rotation of the platen through any desired angle.

is. The combination with a platen, of an actuator rotatable about "the platen axis, a clutch between said actuator and the platen comprising clutch parts connected to the actuator and platen respectively for rotation about the platen axis as a center. and means for intermittently connecting the clutch parts when the actuator is rotated continuously and thereby intermittently rotating the platen. the connection between one of the clutch parts and the part to which it is connected comprising a lost motion spring connection for effecting shorter intermittent rotations of the platen when the actuator is rotated in one direction than when it is rotated inthe other direction.

49. The combination with platen, an actuator therefor, and an intermediate member, all having a common axis of rotation. of means for normally holding the actuator at rest in a predetermined position, permitting the platen and said member to rotate independently thereof. said member having a lost motion connection with the platen permitting a limited rotation of the said member relatively to the platen, and means operable when the actuator is rotated in one direction from said position of rest. to automatically connect it 'ith said member, and rotate the latter a predetermined fixed distance and then disconnect the actuator from said member, said connecting means also operable to connect the actuator to said member when the actuator is rotated in the reverse direction, and thereby to rotate the said member said predetermined distance in the reverse direction and then release the actuator, leaving the platen free for rotation independently of the actuator, said member beig arranged to rotate relatively to the platen he'rilstance permitted by said lost motion connection while the actuator is rotating. said member in one direction but arranged to positively drive the platen the full distance through which said member is rotated by the actuator in the reverse direction, whereby the platen is rotated a definite distance in one direction by the actuator and a different distance in the other direction.

50. The combination with a rotary platen, of an actuator therefor rotatable about the platen axis. a clutch between the platen and said actuator, comprising clutch parts cona rotatable nected, respectively, to the platen and said actuator, one of said connections permitting a limited lost motion between the clutch part and the part to Which it is connected, said actuator having a normal position of rest in which the clutch parts are disconnected to permit the platen to be rotated independently of the actuator,-means operable when the actuator is rotated in one direction from said position of rest, to connect the clutch parts to drive the platen through a predetermined distance and then disconnect the clutch parts, permitting the platen to be rotated independently of the actuator, said connecting means also operdetermined distance and then disconnect the clutch parts, and means whereby said l'ost motion is effected during the rotation of the actuator in onedirection only, thereby causing the platento be rotated by the actuator a greater distance in one direction than 111 the other direction.

ADOLPHUS S. DENNIS.

Witnesses K. FRANKFORT, PAUL ZIRoN. 

